using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CameraControlExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
try
{
// try to find a USB video device. use your device's name here
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
capturectrl.VideoDevices["USB"].Selected = true;
// reference the camera control
CameraControl camera = capturectrl.CameraControl;
if (camera != null)
{
// try to set some camera auto properties
camera.AutoExposure = true;
camera.AutoFocus = true;
camera.AutoIris = true;
camera.AutoPan = false;
camera.AutoRoll = false;
camera.AutoTilt = false;
camera.AutoZoom = true;
// now try to set some camera manual properties
camera.Exposure = camera.ExposureInfo.Min;
camera.Focus = camera.FocusInfo.Max;
camera.Iris = camera.IrisInfo.Default;
camera.Pan = camera.PanInfo.Min;
camera.Roll = camera.RollInfo.Min;
camera.Tilt = camera.TiltInfo.Min;
camera.Zoom = camera.ZoomInfo.Min;
// now increment a property by the stepping delta
camera.Exposure += camera.ExposureInfo.StepDelta;
// set the result to what we expect
_result = (camera.Exposure == camera.ExposureInfo.Min + camera.ExposureInfo.StepDelta);
// now check a property to see if it is supported and has a manual setting
// if so, set it to auto
if (camera.ExposureInfo.Flags != CameraControlFlags.Unsupported
&& camera.ExposureInfo.Flags == CameraControlFlags.Manual)
camera.AutoExposure = true;
// set the result to what we expect
_result &= (camera.ExposureInfo.Flags == CameraControlFlags.Auto);
}
// continue setting capture settings
// and possibly start a capture process
// ...
}
catch (Exception)
{
_result = false;
}
}
Use this enumeration value to identify whether or not the property was set manually or automatically controlled.
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